- Companies
- Property developers
- Leamington Spa
- Silicon Brick Ltd
Silicon Brick Ltd
- Company number
- 11899756
- Incorporated
- 22 Mar 20197 years trading
- Registered office
- 21-23 Clemens Street, Leamington Spa, CV31 2DW
- Nature of business
- Development of building projects
Silicon Brick Ltd is a 7-year-old private limited company registered in Leamington Spa, company number 11899756, one of 156 property development companies in Leamington Spa. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £28K (-44.9%) on the year before, to £34K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £5,052 against £37K owed within a year: 0.1 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £34K | £5,052 | £37K | 1 | |
| 31 Mar 2024 | £62K | £0 | £63K | 0 | |
| 31 Mar 2023 | £50K | £2,632 | £54K | 1 | |
| 31 Mar 2022 | £18K | £3,541 | £12K | 1 | |
| 31 Mar 2021 | £7,661 | £9,459 | £1,798 | 0 | |
| 31 Mar 2020 | £100 |
Where Silicon Brick Ltd is registered
The registered office is in Leamington Spa (CV31), in the Warwick local authority area, West Midlands. Show CV31 2DW on a map.
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- Jude Cleaning LtdCleaning companies
- Blue Elephant Flat Roofing LtdRoofers
- Efficiency Company LimitedElectricians
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What happens if Silicon Brick Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 11899756
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 March 2019 (7 years ago)
- Registered office
- 21-23 Clemens Street, Leamington Spa, CV31 2DW
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 21 March 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Leamington Spa
Other active property development companies registered in Leamington Spa.
- Simon Brain Builder Limited2016
- SLS Trading Group Limited2025
- Smith & Abel Developments Ltd2022
- Solaris Real Estate Limited2023
- South Lynn House Limited2024
- Spencer Gill Developments Limited2022
- Sure Plan Construction Services Ltd2022
- Sustainable Lighting Solutions Ltd2018
All property development companies in Leamington Spa · All trades in Leamington Spa · Property developers across the UK
Frequently asked questions
When are Silicon Brick Ltd's accounts due?
Silicon Brick Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Silicon Brick Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Silicon Brick Ltd still trading?
Silicon Brick Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Silicon Brick Ltd do?
Silicon Brick Ltd is registered under Development of building projects (SIC 41100).
How old is Silicon Brick Ltd?
Silicon Brick Ltd was incorporated on 22 March 2019, 7 years ago.
What is the penalty if Silicon Brick Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Silicon Brick Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.